I've had facial flushing going on for years now where my cheeks flush, sometimes only on the right side. I have ehlors danlos syndrome and POTS syndrome, but this seemed to occu after i twisred my neck and had an "injury." My doctors are puzzled and i know it is a neurological symptom. Could this be related to the cranio-cervical instability that i just got surgery for? Or some type of vascular problem in he neck?